Gasoline engine



Dec. 1, 1925.

M. J. GOLDBERG eAsoLINE ENGINE Filed April 2. 1920 4 sheetslsheet 1 Ii 6% om o mi mw www. .QN m G bw NN .QN LQ..

1925 M. J. GQLDBERG GASOLINE ENGINE Filed April 2, 192()r 4 Sheets-Sheet 3 Dec. l, 1925.

M. J. GOLDBERG GASOLINE ENGINE 4 sheets-sheet 4` Filed April 2. 1920 f Wei/efer ATTORN EY wwf BLM Patented Dec. l, 1925.

UNITED STATES PATENT OFFICE- MEYER J'. GCLDBERG, 0F MUSKEGON, MICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS,

T0 THE MAXIMOTOIS- COMPANY, 0F MUSKEGON HEIGHTS, MICHIGAN, A CORPORA- TION 0F MICHIGAN.

GASOLINE ENGINE.

Application filed April 2,v 1920. Serial No. 870,848.

To all 'whom it may concern.:

Be it known that I, MEYER J. GOLDBERG, formerly a subject of the Czar of Russia, but who have declared my intention of becoming a citizen of the United States, and have taken out my first naturalization papers, and residing at Muskegon, county of Muskegon, State of Michigan, have made a certain new and useful Invention in Gasoline Engines, of which the following is a specification.

rThis invention relates to gasoline engines.

The object of the invention is to provide a structure of gasoline engine which is exceedingly simple, economical to manufacture and easy to assemble, and which is efficient in operation.

A further object is to provide a gasoline engine of small size, of few parts and low cost, which is strong, rugged and sturdy and well adapted for general use.

A further object is to provide an engine of the nature referred to wherein all the working parts, including the fly wheel are housed within the casing of the machine.

A further object is to provide an engine structure composed of various assemblages of parts constituting units which are capable of quick and easy assembly into the complete machine.

Other objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location and relative arrangement of parts, all as will be more fully hereinafter set forth, as

shown inthe accompanying drawings, andA finally pointedout in the appended claims.

In the drawings z Fig. 1 is a view in side elevation of a gasoline engine constructed in accordance with the principles of my invention.

Fig. 2 is a front end elevation of the same.

Fig. 3 is a view in central vertical longitudinal section on the line 3, 3, Fig. 2, looking in the direction of the arrows.

Fig. 4 is a view in transverse section through the crank shaft bearings on the line 4, f1, Fig. 3.

Fig. 5 is a view in vertical transverse section through the cylinder head, the intake and exhaust valves and the fuel control valve, on the line 5, 5, Fig. 1.

Sinne.

Fig. 9 is a similar view on the line 9, 9, Fig. 8.

The same part is designated by the same reference numeral vWherever it occurs throughout the several views.

In recent years a large demand has developed for gasoline engines of comparatively small size and small power, for general use on farms and in homes for driving various farm and home machinery. Engines of this type 'and character are frequently required for use in the open where they are unprotected from rain or moisture, and, moreover, they are required to be of such structure as to be capable of operation by the unskilled labor ordinarily encountered in farm and home work. The initial cost as well as the upkeep and safety of operation of engines for such purposes are important factors to be considered in designing a structure to meet the requirements. It is among the special purposes of my present invention to provide a gasoline engine of comparatively small size and power, which is simple in structure and economical to manufacture, which contains few parts which can be readily removed and replaced when necessary, wherein the working parts are housed within an enclosing casing, thereby protecting them from the effects of rain or moisture as Well as protecting the operator or attendant from the danger of injury or accident, and which is strong, sturdy and durable.

In carrying out my invention I provide an enclosing casing 10, which is cast or otherwise formed, in one single piece to include l the chamber 11 in which is received the crank-shaft, the magneto, the governor, and its operating gearing, and the iy wheel. The cylinder 12 is cast or formed integrally with the casing 10. The 'part 13 of the casing which forms one side wall of the manner.

chamber 11l is formed in one with the casing, y

While the opposite side Wall or' said chamber is open, as indicated at 14, Fig. 4. A bearing 15, is formed centrally through the integral casing Wall 13, in which one end of the crank shaft 16 is received and journaled. If desired this bearing may be bushed, as shown at 17, and lubricated in any suitable or convenient manner, as, for example, by means of the lubricating cup 18. The outer end of the crankshaft extends beyond the wall 13 of the casing and receives thereon a pulley or other form of gear 19 by or through which the power of the engine may be transmitted :for use. The fly `Wheel 2O 1s arranged within the vchamber 11 of the casing and is mounted upon and connected to the crank shaft in any suitable or convenient The other end of the crank shaft is received through and journaled in a bear ing 21, formed in a bearing ring 22, arranged to be applied and removably bolted to the casing at the open side 14 of the latter. If desired, this bearing 21 is hushed, as indicated at 23. A cap member 24 is removably bolted to the outer face of the bearing ring 22, and forms a closure for the openin 14 of the casing. The cap member 24, is ormed With an opening 25, therethrough, which is disposed in line with the end of the crank shaft to permit the insertion of a starting crank to engage the crank shaft end in starting up the engine. A hinged cover plate 26 serves to close the opening 25 in the cap member 24. The upper surface 39 of the bearing 21 in the bearing ring 22 is planed off Iand forms a seat for the base of the magneto 27. The bearing ring 22 is formed with a bearing 28, Within which is mounted a stub 29 upon which is mounted a rotataable gear Wheel 30. This gear Wheel is formed with a cam 31, on one face of the hub thereof for operating the exhaust valve actuating lever presently to be described, and therefore I will refer to said gear Wheel 30, as the cam gear. A pinion 32 is mounted on the crank shaft 16, and this pinion meshes with and drives the pinion 33 of the magneto, and also the cam gear 30. In order to lubricate the bearing 21 in which the crank shaft 16 is journaled, and also the bearing of the cam gear, the'bea-ring ring 22 is formed with a duct 34, which communicates with said bearings, and an oil or grease cup 35 is disposed in communication with said duct.

F or access to the chamber 11 for inspection or other purpose, the casing 10 is form` ed with an opening which is closed by a removable cover 36, in the upper Wall of the casing. This cover is provided with a handle or grip 37 which is rotatable thereon and to which, at the inner side of the cover, are connected locking arms 38, which when said grip is rotated, engage beneath or may be released from the side edges of the opening in the casing.

I will now describe the governor mechanism by which the supply of explosive mixture to the cylinder is controlled.

The bearing ring 22 is formed with a bearing 40, see Fig. 9, in which is journaled the governor spindle 41. Upon this spindle is mounted the pinion 41', arranged to mesh with and to be driven by the cam gear 30. Clamped upon or otherwise secured to or formed on to rotate with the spindle 41 are brackets 42, upon Which are pivotally mounted the weighted governor arms 43. These Weighted arms are rocked upon their pivots to Ia greater or less extent by centrifugal action according to the speed of rotation of the spindle 41. The spindle 41 is bored or formed hollowv and a plunger 44 Works in said bore against the action of a spring 45, positioned in said bore. The plunger 44 is provided with a collar 46 which forms a yielding stop or abutment for the light ends of the governor arms 43. The supporting brackets members 42 form a stop for the Weighted ends of the governor arms. The bearing ring 22 is formed with a bearing 47 in which is mounted a stud or pin 48. Upon this stud a sleeve 49 is mounted to rock said sleeve, having arms 50, 51, and constituting in effect a double armed lever. To the arm 50 is pivotally connected one end of the throttle valve reach rod 52. The other arm 51, of sleeve 49, is cupped at its free end and receives therethrough the hardened pin 53, arranged to take the bearing thereagainst of a pin or projection 54, carried by, or forming an extension of the plunger44. A spring 55 is interposed between the lever arm 51, and an adjusting screw 56 Working in a threaded opening formed through the cap plate 24.

From this description it will be seen that the leverarm 51 is subjected to the opposing tensions of springs 45 and 55, the tension of the latter being adjustable by the adjusting screw 56. The tension of spring 45 exceeds that of spring 55, and consequently the lever arm 51 is held normally in the outer limit of its rocking movement when the engine is at rest, and hence the arm 50 and the reach rod 52 are held in their extreme limits in one direction of movement thereof. This limit corresponds to the position of Widest opening of the throttle valve presently to be more fully described. As the engine starts up and its speed increases, centrifugal force will cause the Weighted ends of the govenor arms to rock outwardly, thereby causing their light ends to engage the collar 46 on plunger 44, and force said collar into the bore of the spindle 41, against the action of spring 45. The

centrifugal force exerted upon the plunger 44 through the governor arms is augmented by the tension of the lighter spring55. The result is that lever arm 51 is rocked inwardly, thereby rocking sleeve 49 and lever arm 50, and hence causing the reach rod 52 to move outwardly to cause the throttle valve to move towards closed posit-ion. I thus provide an exceedingly simple and sturdy overnor mechanism which is composed of ew parts inexpensive to manufacture and capable of being easily and readily assembled, or replaced when required, while at the same time I secure an adjustable sensitiveness of governor action which responds uickly and vaccurately to speed variations, t ereby securing great smoothness and steadiness of the engine when in operation. It will be understood, of course, that while I have shown and described a specific structure of governor mechanism, and while I have found that structure to be entirely satisfactory in use, I do not wish to be limited or restricted, in the broadest scope of my invention, to the exact details shown and described.

I will now describe the cylinder head and the parts associated therewith, it being understood, of course, that the structure shown is illustrative of a simple practical operative embodiment of my invention.

The cylinder head 57 is removably secured in any suitable manner to the end of the casing 10, and in line with the cylinder 12, as, for example, by means of the clamp bolts 58, and it is formed with a boss 59 for an explosive mixture supply connection 60, and with a boss 61 for an exhaust connection 62. The head 57 is also formed with a passage 63 which communicates through the boss 59 with the intake connection 60. In the -passage 63, is received the intake valve cage and assembly. This valve assembly, in the illustrative arrangement shown, consists of a flanged cage 64, the flange 65 of which is secured to the cylinder head in any suitable manner, as, for example, by the securing bolts 66. The cage 64 carries a seat ring 67 at its inner end which seats against a shoulder formed in the cylinder head opening or passage 63. This ring also forms a seat for the inlet valve 68. The stem 69 of this valve works through a bearing therefor formed in the body of the cage 64. A coiled spring 7 O inter osed between the stem bearing in the cage ody and a washer 71 fixed to the valve stem servesto normally maintain this valve yieldingly closed upon its seat. The washer 71 is shown secured to the valve stem by means of a pin 72, and in order toform a housing for said pin, as well as a boss around which the end of the spring 7 0 engages, the central portion of the washer 77 is depressed, as shown at 73.

The cylinder head is also formed with a -passage 74 which communicates through boss 61 with the exhaust connection 62. yThis pas age 74 is controlled by the exhaust valve 75, the stem 76 of which Works through a bearing 77 formed in the head. A coiled spring 78 interposed between said bearing 77, and a cupped or centrally depressed washer 79, serves to normally maintain the exhaust valve seated to close the exhaust passage. The washer 79 secured to the exhaust valve stem by means of a pin 80, the central depressed portion of the washer forming a housing for said pin as Well as a boss around which the end of the spring 78 engages.

The cylinder head is also formed with an opening 81, therethrough which is preferably located closely adjacent to the inlet valve, and in which opening is inserted the spark plug 82. By thus locating the spark plug in close proximity to the inlet valve, the incoming jets of gaseous mixture which are comparatively cool, serve to maintain the spark plug cool and also to prevent the accumulation of carbon or other deposits thereon.

The cylinder head is formed with an enlarged chamber 83, centrally therein, which is in line with and opens directly into the cylinder 12. This chamber constitutes the compression and ignition chamber, the spark plug pro]ecting into said chamber and the valve controlled intake and exhaust passages also opening directly into said chamber.

The intake valve is periodically unseated, in the illustrated example of my invention, by the suction action of the piston. The exhaust Valve, however, is mechanically actuated periodically to open position in proper timed relation after each explosion to permit the escape of the spent gases and other products of combustion from the cylinder. Since the cylinder head with its inlet and exhaust valves, spark plug and intake and exhaust bosses and passages constitute, as an assemblage, a single unit capable, as a. unit, of being bolted on or removed from the casing, it is exceedingly desirable to permit the removal of the head from the casing or its application thereto without disturbing or disarranging the exhaust valve operating devices, or the gear or timing arrangement thereof. To accomplish this desirable result I cast or form integrally with the casing 10, suitable lugs 84, between which extends a rock lever 85, said lever being pivotally mounted upon a pivot pin 86, passing through said lever and lugs. One end of this lever extends through an opening 87 into chamber 11 of the casing and carries a roller 88, which bears or works against the cam 31 on the cam gear 30. The outer end 89 of this lever is formed into an open sided cup which receives and acts upon the stein 76 of the exhaust valve.

An adjustable set screw 90 .serves to regulate the clearance between said lever and valve stem, A spring 91, interposed between the lever 85 and the bottom of the casing servesV to maintain the roller 88 against the cam 31, and also a desirable clearance between the said lever and the exhaust valve stem. This structure permits the removal and replacement of the cylinder head Without disturbing the exhaust valve operating lever land hence without disarran ing the timing of the operations.

1% desired, and in order to exclude dust and dirt from the inlet valve assembly, and at the same time present a neat and finished i appearance, a cap 92 may be `applied over the outer end of the valve cage.

The gasoline or other fuel supply is carried in a reservoir or tank 93, which may be located in any convenient position. In.

' the arrangement shown the tank 93 is positioned between side members or skids 94:, which constitute a convenient supporting base upon and to which the engine casing is bolted. These skids may conveniently be of wood, and, in practice, I prefer to support the tank or reservoir 93 above the lower surfaces of said skids in order to remove possibility of puncture of the reservoir, or unevenness of the base setting forthe engine, by reason of the bottom of the reservoir coming in contact with a sharp stone or other object.

From the tank leads a supply pipe connection 95, which delivers 1nto a mixing nozzle 96, through an opening 97, which is controlled lby a needle valve 98, which is threaded through the wall of the nozzle 96 opposite said opening. The opening 97 is transversely disposed with reference to the length of the nozzle. The outer end of the nozzle is flared or enlarged, asat 99, and is open to the outer air except for an outwardly seating late or disk valve 100 which is hghtly held) seated or closed upon an annular rim 101 by means of a spring 102 interposed lbetween said plate or disk and a nut 103` on the end of `a rodon which the disk or plate is mounted and which rod is carried by a cross member 104 of the rim.101.

The nozzle 96 communicates through the connection 60 with the intake passage 'through the boss 59 of the cylinder head.

This communication is controlled by means of a special construction of throttle valve 105' which, in this illustrative form of my invention, is of cylindrical shape and works likea piston in av tubular ortion of the nozzle 96. The reach rod 52 1s connected to the piston valve 105. The outer end of the piston valve is formed with a V-sha ed notch 106, the widest portion of whic is presented outwards towards the enlarged open' end of the nozzle and away from the connection 60.

piston works back and forth in the cylinder it wipes the lubricant from the opening 112 and applies and distributes it to and upon the interior wall [of the cylinder. In this manner lubricant is carried to a short tube 113 which extends through the wall of the piston over the pivotal connection 108 and directs and insures the dripping of the lubricant into a cup 114, forming part of 0r communicating with the pivotal connection 108.

The casing 10 is formed with an enlarged chamber 115 to receive a supply of water or other cooling medium. This chamber surrounds the c linde'r 12, and also communicates throug passages 116, with assages 117 cored or otherwise formed in t e head 57, thus constituting a simple but ellicient jacket for both the cylinder and the head. The heat of the head creates a circulation of the cooling water, thereb insuring a most eliicient heat radiation w ereby the engine in operation is maintained remarkably cool. The casing 10 is'formed with an openin in the top thereof through which the circu ating water may be introduced into chamber 115. The mouth of this openin is outwardly flared as shown at 118, to acilitate the to the chamber 115 without spilling the same over the interior of thecasing.

A drain hole from the chamber provided through the bottom wall of the casing, as indicated at 119, and likewise a drain hole from the crank chamber ma be provided through the casing wall as indicated at 120.

From the foregoing description it will be seen that I provide an exceedingly sim le and eilicient engine which is strong and d) rable, economical to manufacture, and the parts of which are few and easily and readily assembled. All workin parts, including the 'ly wheel, as well as t e magneto, are inclosed or housed within the casing, thereby protecting the gearing and other working parts from dust or dirt, while removing danger of accident or injury to attendants by getting caught in the working parts of the engine. By thus enclosing the magneto within the casing it, as well as the other parts inclosed in the casing, are protected from the effects of rain or moisture even if 115 may be lll the engine is operated out in the open'. Be-

sides a very neat and attractive appearance is given to the entire engine by reason of the concealment from View of its working parts, and by the plain symmetrical outline ofthe casing.

It will also be observed that I provide a structure wherein a large heat radiation is secured, thereby enabling me to maintain the engine remarkably cool while in operation.

The governor mechanism which I have described enables me to secure an exceedingly steady operation of the engine, and since the throttle valve which the governor mechanism operates or controls is a balanced piston valve it will bei readily seen that the work required of the overnor mechanism is exceedingly slight an hence these parts are very durable.

By reason of the open side cup shape of the end of the exhaust valve operating lever the entire cylinder head may be removed from and reapplied to the cylinder without disturbing or disarranging said lever, its mounting or the appliances for operating it.

In assembling the engine, the crank shaft with the fly wheel 2() and gear 32Imounted thereon, forms a unit. This unit is then passed through the opening 14 in the side of the casing, and the end of the crank shaft is inserted through the bearing 15 in the wall or closed side of the casing. The bearing ring, with the magneto 27 attached to the seating 39, the cam gear 30 and its supporting stud 29; and the governor structure including the spindle 41, weighted arms, plug" 44, pin 48, double armed lever 49, all applied thereto and constituting another unit of the structure is then applied to theropen side of the casin and bolted thereto with the other end of t e crank shaft received in the bearing 21. The cover plate unit 24 with the governor adjusting screw 56 and spring 55 and cap 26 is then bolted on to the bearing ring 22. Before the cover plate unit is applied the throttle valve reach rod is inserted through the casing and attached to the arm 50, and the piston rod with piston attached is inserted through and into the cylinder from its open end and said rod clamped upon the crank of the crank shaft.

The end ofthe exhaust valve operating lever 85 is then inserted through the opening 8'1? in the casing and its pivot pin 86 put in ace.

p The cylinder head with its various parts assembled thereon is then bolted on to the end of the cylinder, the nozzle 96 is bolted on with the throttle valve in place therein, and the tank connection 95 attached thereto, and finally the exhaust connection 62 is applied, the drive pulley 19 is placed and the circulating water is supplied, and the engine is ready to start up.

It is to be understood that many variations and changes in details might readily occur to persons skilled in the art and still fall .within the spirit and scope of my invention. I do not desire, therefore, to be limited or confined to the exact details shown and described.

But having now set forth the objects and nature of myinvention and a construction embodying the principles thereof, what I claim as new and useful and of my own invention is 1. In an internal combustion engine, acylinder and piston, a crank shaft, a fly wheel, a governor mechanism and gearing driven by the crank shaft to ope-rate the same and a magneto, in combination with a casin haying a chamber in which said crank sha t is Journaled, said chamber also enclosing all of said parts.

2.. In an internal combustion engine, a casing having an opening in one side thereof, a crank shaft, a bearing formed in the closed side of the casing to receive one end of said shaft, a bearing ring removably bolted to the open side of said casing and having a bearing for the other end of said shaft, and a cover plate applied to said ring to form a closure for said casing.

3 In an internal combustion engine, a casing having an opening in one side thereof, a crank shaft, a bearing formed in the closed side of the casing to receive one end of said shaft, a bearing ring removably bolted to the open side of said casing and 1J.having a bearing for the other end of said shaft, a cover plate applied to said ring to forni a closure for said casing, said ycover plaats having an opening in line with the end of said shaft, and a ca'p for the opening in said cover plate.

4. In an internal combustion engine, a casing having an opening in one side thereof, a crank shaft, a bearing formed in the closed side of the casing to receive one end of said shaft, a bearing ring removably bolted to the open( side of said casing and having a bearing for the other end of said shaft, and a cover plate applied to said ring to form a closure for said casing, said cover plate having an opening disposed in line with said shaft.

5. In an internal combustion engine, a casing having an opening in one side thereof, a crank shaft, a bearing formed in the closed side of the casing to receive one end of said shaft, a bearing ring applied to the open side of said casing and having a bearing for the other end of said shaft, a magneto mounted on said bearing, and a cover plate applied to said ring to form a closure for said casing.

6. In an internal combustion engine, a casing having an opening in one side thereof, a crank shaft, a bearing formed in the closed side of the casing to receive one end of said shaft, a bearing rin open side of said casing am? having a bearing for the other end of said shaft, said bearing having a planed off surface to form a seating,'a magneto mounted upon said seating, and eared to said shaft, and a cover plate a apted to be attached to said ring to form a closure for said casing.

7. In an explosive engine, a casing having an integral closed wall in one side thereof and an openin in the opposite side Wall, said closed Wall Iiaving a bearing therein, a crank shaft having one end journaled in said bearing, a ring member having a bearing therein to form a journal for the other end of the shaft, said ring member removably secured upon the open side of said casing, and a il wheel mounted on said shaft and locate within said casing.

8. In an explosive engine, a casing having an integral lclosed wall in one side thereof and an opening in the opposite side wall, said closed wall having a bearing therein, a crank shaft having one end journaled in said bearing, a ringmember having a bearing therein to form a journal for the other end of the shaft, said ring member adapted to be secured upon the open side of said casing, a governor mechanism carried by said ring memberand geared to said shaft, said governor mechanism being enclosed Within said casing, and a cover plate for said ring member.

9. In an explosive engine,'a casing having an integral closed Wall in one side thereof and an opening in the opposite side wall, said closed Wall having a bearing therein, a crank shaft having one end journaled in said bearing, a ring member having a bearing therein to form a journal for the other end of the shaft, said ring member removably secured upon the open side of said caslng, a cam gear journaled upon said ring member and geared to said shaft, and a cover plate for said ring member.

10. In an explosive engine, a casing having an integral closed wall in one side thereof and an opening in the opposite sidewall, said closed wall having a bearing therein, a crank shaft having one end journaled in said bearing, a ring member having a bearing therein to form a journal for the other end of the shaft, said ring member adapted to be secured upon the open side of said casing, a governor mechanism carried by said ring member, a cam gear journaled upon said ring member and driven from said shaft, said cam gear being geared to said governor mechanism.

11. In an explosive engine, a casing having an integral closed wall in one side thereof and an opening in the opposite side wall, said closed wall having a bearing therein, a crank shafthaving one end journaled in,

applied to the said bearing, a ring member having a bear ing therein to form a journal for the other a crank shaft having one end journaled in.

said bearing, a ring member having a bearing therein to form a journal for the'other end of the shaft, 'said ring member removably secured upon the open side of said casing, a gear 'ournaled upon said ring member and forme with a cam at the hub thereof, said gear being driven from said shaft.

13. In an explosive engine, a cylinder and casing integra ly connected, a governor` fly wheel and magneto, said casing formed in one iece and arranged to enclose said parts and aving-an open side and means to close Asaid o en side.

14. n an explosive engine, a cylinder and piston, a crank shaft connected to said piston, and a fly wheel mounted on said shaft, in combination with a casing to enclose said cylinder, crank shaft and fl wheel, said casing having an integral si e wall rovided with a bearing to receive one en of said shaft, the side wall of said casing having an opening therein, and a removable member detachably connected to the open side of said casing and having a bearing to receive the other end of said shaft.

15. In an explosive engine, a cylinder and piston and a crank shaft, in combination with an enclosing casing for these parts, said casing having an integral side wall, the opposite side of the casing having an opening, a bearing ring detachably mounted upon the open side of the casing, the respective ends of said shaft being journaled in bearings in said integral side wall and in said bearing ring.

16. In an explosive en ine, a casing having one side wall forme integrally therewith and having an opening in the opposite side wall, a bearing ring detachably connected to the open side of the casing, bearin s formed in said integral side wall and in sa1d bearing ring, and a crank shaft having its ends respectively journaled in said bearings.

17. In an explosive engine, a casing having one side wall formed integrally therewith and having an opening in the opposite side wall, a bearing ring detachably connected to the open side of the casing, and a magneto mounted on said bearing ring and disposed within said casing.

18. In an explosive engine, a casing having one side wall formed integrally therewithV and having an opening in the opposite 19. In an ex l'osive engine, a casing hav.

ing a closed si e and an o enside, a bearv ing ring detachably secure to the open side of the casing, a `crank shaft journaled at its ends in bearings formed in the closed side of the casing and in said bearing ring, respectively, a governor mechanism arranged Within said casing, and including a rotatable spindle, said spindle journaled in a bearing in said bearing ring and geared to said crank shaft.

20. In an ex losive engine, a casing having a closed si e and an open side, a bearing ring detachably secured to the open side of the casing,'a crank shaft journaled at its ends in bearings formed' in the closed side of the casing and in said bearing ring, re-

spectively, a governor mechanism arranged Wlthln sald casing, and including a rotatable spindle, said spindle journaled in a bear' ing in said bearin ring and geared to' said crank shaft, a roc shaft also journaled ina bearing in said bearing ring and having arms, one of said arms arranged to be rocked by said governor mechanism, and a throttle valve rod connected to the other of said arms.-

.In testimony whereof I have hereunto set my hand on this 29th day of March, A. D.

MEYER J. GOLDBERG. 

